Angle-independent strong coupling between plasmonic magnetic resonances and excitons in monolayer WS2

ribbons instead of the monolayer and simultaneously is dynamically controlled by varying the interaction area. More importantly, the observed MR-exciton coupling is angle-independent. Our findings thus suggest a possible way toward enhancing light-matter interactions in monolayer transition-metal dichalcogenides and play significant roles in quantum and nonlinear nanophotonic devices at ambient conditions.